3 Mazurkas, Op. 59: No. 2 in A-Flat Major. Allegretto

Recording identifiers

ISRC

DEN961600352

Release date of the album this recording appears on

2017-01-27

CopyrightID (CopyrightChains transaction hash)

0x1796b706a74da2a166c60fa6e3a6adf3bee1b3da4bad6107ac34b9aa486ae9dd

Copyright registration time

2026-07-22T14:57:25+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-22T15:38:35Z

Bitcoin block

959144

Canonical record hash

sha256:9ee654dfc2e084471b8b22c8bac523b44e240c1697860e86ca899a77be316bd7

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
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• Recording evidence summary for ISRC DEN961600352

What this proof establishes

This recording was released in 2017, before generative AI. ProofProfile's catalogue derives from the pre-2022 AcousticBrainz and MusicBrainz source corpus, and ISRC is the stable recording-level bridge from that source corpus to the authoritative cc-db-prod track record.

CopyrightChains and Bitcoin OpenTimestamps make the exact committed record independently verifiable today. The cryptographic proof does not by itself establish authorship or ownership of the underlying recording.

Read the complete pre-generative-AI provenance and verification method.